Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Check Engine light comes on (P0346) after Valve Cover gasket replacement (2006 Cayenne S)

Recommended Posts

Long story short, I replaced the valve cover gasket on both sides on my 2006 Cayenne S due to some leaks in the spark plugs holes (noticed that when I was changing out the spark plugs to fix some misfire issue).  The driver side went smooth with no problem.  The passenger side took a little longer due to more things to remove and little tighter space.  After the gasket was replaced, there was a Check Engine Light.  I went out to Autozone and they did a scan for me, it showed a P0346 (Camshaft position sensor 'A' circuit range/performance bank 2)  I removed the camshaft position sensor and inspected it, everything seems to be fine.  I bought a Foxwell NT520 Porsche scanner and cleared the code.  The check engine light came back the next day with the same code P0346.  I bought a new sensor and replaced the old one.  Cleared the code, start engine, but CEL came back on after I rev the engine a few times.


The car runs great with no issues.


Is there something internal that I could have touched while installing the valve cover?  I know that there is a Camshaft sensor trigger wheel that has some fingers, but I wouldn't think they could bend that easy.  Please let me know if you have any idea what could caused this problem.  I hate to take out the valve cover again, but afraid I may have to in order to inspect the internals.


I did a live data test from the NT520 and Camshaft Deviation bank 2 is blank.  It's -2.00 for bank 1.  Looks like it's not reading anything at all.

Edited by z064ddle
update vehical info
Link to comment
Share on other sites

4 minutes ago, Loren said:



Are you sure you replaced bank 2 and not bank1?

As you sit in the car bank 2 is on the left (drivers) side.


What happens if you swap the two sensors? Does the problem stay on the same side? or move?


That could be my issue.  I replaced the sensor on the passenger side.  The CEL came on after I replaced the passenger side valve cover gasket.  Maybe that was just a coincident. Thanks for the tip Loren.  Let me change out the driver side sensor now.

Link to comment
Share on other sites

I replaced the sensor on the driver's side, but the issue remains.  Car runs great with good acceleration and no noise.  I unplugged driver's side camshaft position sensor connector and it didn't make any difference.  I unplugged the passenger side sensor and car won't start and threw additional code P0348.  Plugged back the 3-wire connector to the sensor for passenger side, car starts fine.


Does anyone know how the 2 Cam sensors work together?



Link to comment
Share on other sites

After some further inspection of the old sensor, I do see some scuff marks on the metal part of the senor.  Not sure if the trigger wheel finger is touching it and caused that mark.  Please see photos.


I did measured the terminals on the sensor connector of the drivers' side.  It's 6.xx VDC between Red and Black.  It's 11.xx VDC between Red and the 3rd wire.





Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.